Incendiary shells are a type of ammunition designed to ignite fires upon impact. They are typically filled with flammable materials and are used in artillery and naval warfare to destroy enemy equipment, structures, or supplies. When these shells explode, they release intense heat and flames, causing significant damage to targets. These shells have been used in various conflicts throughout history, including World War I and World War II. Their effectiveness in causing destruction has led to their continued use in modern military operations, although their deployment is often subject to international laws and regulations regarding warfare and civilian safety.